Specification for nickel-chromium-cobalt-aluminium-molybdenum-titanium heat-resisting alloy billets, bars, forgings and parts (nickel base, Cr 15, Co 14.2, Al 5, Mo 4, Ti 4) Ingestion-build-260237 This document specifies a subjective

This document specifies a subjective method for measuring sound attenuation of hearing protectors at the threshold of hearing

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Specification for nickel-chromium-cobalt-aluminium-molybdenum-titanium heat-resisting alloy billets, bars, forgings and parts (nickel base, Cr 15, Co 14.2, Al 5, Mo 4, Ti 4) Ingestion-build-260237 This document specifies a subjective1 Scope This British Standard specifies requirements for nickel chromium cobalt aluminium molybdenum titanium heat resisting alloy supplied in the following forms, and as parts. a) Bars and extruded sections for machining: solution treated, designation HR 4A. b) Billets and bars for forging: hot or cold worked and subsequently machined or ground, designation HR 4B. c) Forgings: solution treated, designation HR 4C.